A Little History
SpiritWars premiered in 1998 on WON.net, Sierra's now defunct online game service, and when WON was purchased by the Flipside network and was merged into their casual game service, Randy Chase, the developer, decided to keep it going, running it himself. The game's enthusiastic fans followed him off the service, and have kept it going ever since. Now in version 3.0, it's been iterartively developed over the years until it now contains a veritable wealth of different 'spirits' and maps, and has become a highly polished, smooth-playing game. This is, of course, one of the advantages of this kind of online game; it gets better with age and polish.
None Dare Call it XCOM
...Because that's a trademark owned by Atari. But Laser Squad Nemesis is the true intellectual and gameplay heir of XCOM: UFO Defense (published in Europe as UFO: Enemy Unknown), the best-selling and best-loved computer game of 1995. No surprise there; Julian and Nick Gollop developed both games. But as is typical in this industry, they signed away all IP to get XCOM published.
Cosmic Encounter!
Cosmic Encounter! For those of us who encountered the game in our youth, the words have something of the ring of "Oklahoma!" The ebullient American spirit! The vast vistas of, um, outer space. The late nights in dorm rooms or at science fiction conventions studying cards and back-stabbing allies... A brilliant game then, and in its Internet version, a brilliant game still.